Surface temperature measurements: how reliable?

From Greenie Watch: Transcript of an interview with Anthony Watts on the ABC: Australia's main public broadcaster. The interviewer is Michael Duffy, a former Labor Party politician, but a rational one Michael Duffy: First up, climate sceptic Anthony Watts. Anthony is a weatherman with KPAY AM radio in California, he's been a weatherman for 25 years. He also runs a very popular climate change sceptic blog, WattsUpWithThat.com, and as well in 2007 he founded SurfaceStations.org. This is a very interesting website, it invites readers to visit America's official climate monitoring stations and describe their physical location, often with the help of photos that are then posted on the website. The results can be quite surprising; they show stations next to air conditioner outlets, for example, or in the middle of asphalt-coated car parks. Anthony Watts is about to begin a speaking tour of Australia. I caught up with him at his home in California late last week. Your blog WattsUpWithThat.com is hugely popular, I think it's the most visited climate site in the world, isn't it? Anthony Watts: It is. It caught me quite by surprise but it now regularly exceeds two million visits per month and we get visitors from all over the world. When we compare the traffic to other climate sites, surprisingly it is the largest climate related informational site in the world. Full interview here.

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